<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>
<body>
  <div id="app"></div>
  <div>
    <span>count: <span id="textNum"></span></span>
    <button id="btnIncrease">+1</button>
    <button id="btnClear">clearNumWatch</button>
  </div>
</body>
<script src="./lib/lodash.min.js"></script>
<script src="./src/test.js" type="module"></script>
</html>